which leaf vacuum to buy

Can someone with experience recommend a leaf vacuum for large, heavily wooded yard (oaks and maples) I have a Hustler fastrac 52/20 and could use with that or an independent pull behind system. Just want something that can handle the leaf volume. What works well with you?

Hustler's Bac-vac is a nice vac setup but only 9 bushel capacity you'll be dumping every 2 minutes. Look at Protero.com Trac -Vac.com or Cyclone rake.com. It's really a shame but Hustler seems to have no plans to increase capacity on the Bac-Vac. I know 3 guys with Super Z's One has a Peco vac, other a Protero vac and the other guy mounted an Exmark Ultra Vac. They all could not justify putting a 9 bush. capacity Bac-Vac on a 60 in deck. Hustler says everyone's content w/ 9 bushels not me and those 3 guys.